If the Bus Mania app is not starting and gets stuck on the loading screen before crashing, you can follow these troubleshooting steps to try to resolve the issue:

Step 1: Force Close the App

1. On your iPhone, double-click the home button or swipe up from the bottom (depending on your model) to access the app switcher.
2. Locate the Bus Mania app and swipe it up to close it completely.

Step 2: Restart Your Device

1. Press and hold the power button until you see the "slide to power off" slider.
2. Slide to power off your iPhone.
3. Wait a few seconds, then turn it back on by pressing the power button.

Step 3: Check Your Internet Connection

1. Ensure you have a stable Wi-Fi or mobile data connection.
2. Try switching your Wi-Fi off and then back on, or toggle airplane mode on and off to reset the connection.

Step 4: Update the App

1. Open the App Store on your iPhone.
2. Tap on your profile icon at the top right.
3. Scroll down to see pending updates and find Bus Mania. If an update is available, tap "Update."

Step 5: Reinstall the App

1. Long press the Bus Mania app icon until you see options.
2. Tap "Remove App," then confirm by selecting "Delete App."
3. Go to the App Store, search for Bus Mania, and reinstall it.

Step 6: Check for iOS Updates

1. Open the "Settings" app on your iPhone.
2. Scroll down and tap "General."
3. Tap "Software Update" to check if an update is available. If so, download and install it.

Step 7: Clear Space on Your Device

1. Go to "Settings" > "General" > "iPhone Storage."
2. Identify and delete any apps or content you no longer need to free up storage space.

If you have tried all these steps and the app still crashes at the loading screen, you may consider checking forums or community support for more specific solutions related to Bus Mania, as other users may have faced similar issues – learn more - learn more - learn more.